133404310021 has 4 divisors (see below), whose sum is σ = 133425295200. Its totient is φ = 133383324844.

The previous prime is 133404309977. The next prime is 133404310027. The reversal of 133404310021 is 120013404331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133404310021 - 2⁹ = 133404309509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133404309974 and 133404310001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133404310027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10483051 + ... + 10495768.

It is an arithmetic number, because the mean of its divisors is an integer number (33356323800).

Almost surely, 2^133404310021 is an apocalyptic number.

It is an amenable number.

133404310021 is a deficient number, since it is larger than the sum of its proper divisors (20985179).

133404310021 is an equidigital number, since it uses as much as digits as its factorization.

133404310021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20985178.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 133404310021 its reverse (120013404331), we get a palindrome (253417714352).

The spelling of 133404310021 in words is "one hundred thirty-three billion, four hundred four million, three hundred ten thousand, twenty-one".